bichovsbocãoWhich spelling fits?

Quick tell: bicho is a noun, bocão is an adjective, so they fill different roles in a sentence.

Which to use

“bicho” is a noun and “bocão” is an adjective - they look or sound alike but fill different roles in a sentence.

#7,106
“bicho” frequency rank
#40,450
“bocão” frequency rank
47556
confusion score

Side-by-Side Comparison

Feature bicho bocão
Definition sinônimo de animal que fala mais da conta, linguarudo

Letter map: bicho vs bocão

Shared letters muted; letters that set bicho and bocão apart highlighted. Shared run: 3. bicho (CVCCV) and bocão (CVCVV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

5 ch
bicho
5 ch
bocão

Part-of-speech tell for bicho / bocão

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: bicho is anoun and bocãoanadjective. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 47556, derived from the frequency rank of both members and their visual similarity.

bicho is recorded at frequency rank #7,106, classified as anoun. bocão is at rank #40,450, tagged as anadj, pronounced /bo.'koŋ/.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 47556, this pair ranks #17,685 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of bicho vs bocão

Shared letters: bco. Private to "bicho": hi. Private to "bocão": ã.

"bicho" · 5 letters · shape CVCCV  ·  "bocão" · 5 letters · shape CVCVV

Known mistypes of this pair

  • bicho ← bbicho · bciho · biccho · bichho · bicoh · bihco · ibcho

Frequently Asked Questions

Is swapping "bicho" for "bocão" ever safe?
No - they are not even the same part of speech. "bicho" is a noun and "bocão" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "bicho" or "bocão"?
"bicho" is the more common of the two: it sits at frequency rank #7,106 in our Portuguese list, against #40,450 for "bocão". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Done with this confusable. These links stay specific to "bicho" and "bocão".

  • Full dictionary entry for "bicho" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "bocão" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #17,685 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "bicho" and "bocão" also get mixed up with nearby pairs, the highest-scored neighbour is "bocão vs borrão". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #17,685 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list